the week. it's 67 in walnut creek. temperatures up from where they were yesterday at this time. overnight lows will be cool again. we don't have a frost advisory, but it's still going to be chilly. look for mid-30s in the coolest inland bay valleys. away from santa rosa, you'll find temperatures in the mid- 30s. the forecast tonight, patchy fog like we had last night. coastal fog and even a little bit of valley fog. warmer tomorrow. in the extended forecast, we continue into a nice, warm period. the forecast tomorrow, we're looking for coastal fog to return to the coast. yellows are 70s. daytime highs tomorrow more upper 60s and low 70s. even some mid-70s might be popping up. this warming trend just starting as we get into this thursday, friday. temperatures, you know it's going to happen.